Ok Thanks Ill look into them What I see at a glance is Its recommended using loctite 603Crazyflyboy posted this last week. Made in Japan, as far as I’m concerned better than Made in China Timken bearings. Price is for 2 bearings!!! You can’t beat this price either:
Features & details 2 Premium Koyo Bearings Replaces Polaris 3514699 3514627 3514822 3514924 Exceeds OEM Specifications 3 Year Warranty Extreme Close Contact NBR Seals Chevron Synthetic HD Off-Road Water and Rustproof Grease ABEC 5 High Speed Precision Fits all Polaris RZR 1000 regardless of...rad.parts
with that said is there a bearing you find better then oem?Point: Polaris does not make bearings - they buy them from a bearing manufacturer, buy in bulk, possibly have the expense of packaging them in their own over-wrap and tack on a profit margin.
Point: The same size bearing may be manufactured to higher or lower quality standards including the materials, design and mass (more or less material).
Point: The bearing may or may not meet design specifications and the product may not be adequate for the application or the product may exceed the design specifications.
Cost is not always a good indicator of quality. If something is special, but mass produced it will cost less than a small quantity of a special production run.
Example: Honda specified a special design common bearing as the transmission shaft bearing on the sprocket end of the output shaft of XR400R motorcycles and TRX400EX quads through 2003 (in 2004 the bearing was re-spec'ed to a special size). The bearing part number 91003-KCY-671 is marked 6205R/2BHR measures 25x52x13 - a standard 6206 bearing measures 25x52x15 - this bearing (KOYO) is NLA. In late 2004 the bearing was changed to a 25x55x13 - the new bearing is part 91003-HN1-003 and is marked DG2555/13HR (KOYO). Since the early bearing is NLA and a standard 6205 cannot be used, it demands replacement with whatever fits the application. Two options; 1) re-machine the engine case to install the new 55 mm bearing in the case originally machined for 52 mm. 2) install a bearing from any source that measures the 25x52x13 dimension.
I found a Chinese bearing MOCHU marked 6205-13. The cost was not CHEAPER - the KOYO bearing from Honda was $24 - the MOCHU was $38 and the difference in quality is obvious - the MOCHU bearing uses smaller balls and shallow groves (less load carrying capacity), but the races are thicker - it fits the shaft and the hole for a direct replacement, but it will not last as many years and depending on the severity of use by the operator. The original bearing Honda installed would fail (breaking (splitting) the outside race which is why Honda increased the thickness of the outer race when the engine was redesigned in late 2004).
I ordered a special production run of (5) 25x52x13 bearings from MOCHU in China for $38 each, but got free shipping direct from Shanghi. They may not be the same quality, but it was the cheaper alternative to machine shop work and a faster repair to boot.